化学发泡剂

介绍了原料、配方、工艺、设备等因素对采用化学发泡剂进行PVC发泡挤出成型的影响，对实际生产有一定的指导意义。

The influence of the materials , recipe , technology and equipments on extrusion of PVC foam by using chemical foamer are introduced . And it is significant for practical production .

对EPS发泡塑料包装制品的新型替代品植物纤维发泡制品的制作、工艺及设备特点，化学发泡剂发泡及水蒸汽发泡技术，以及国内外该项技术的发展状况进行了介绍。

G. the plant fiber foaming product on EPS foaming plastic package . It presents foaming technology by chemical foamer and steam and explains the developing status of the technology both at home and abroad .

目前，工业上生产低密度聚乙烯（LDPE）/乙烯醋酸乙烯酯共聚物（EVA）共混物泡沫一般采用化学发泡剂和化学交联剂，存在发泡不均匀、发泡剂残留以及环境不友好等问题。

However , the industrial production for the foaming of low density polyethylene ( LDPE ) / ethylene vinyl acetate copolymer ( EVA ) blends is application of chemical foaming agent and chemical crosslinking agents with nonhomogeneous cell structure , foaming agent residues and the environment unfriendly and so on .

高发泡倍率聚丙烯泡沫材料的制备塑料用化学发泡剂

Study on Preparation of High-expanded polypropylene foams using chemical blowing process chemical blowing agents in plastics processing

研究发现，当化学发泡剂含量为2~3质量份、成核剂含量为0.1~0.2质量份时，得到的制品密度较低、泡孔结构规整。

When the mass of chemical foaming agent and nucleator attained 2-3 and 0.1-0.2 phr , respectively , the foam articles so prepared possessed low density and regular foam structure .

是利用物理发泡剂的压力能或化学发泡剂受热分解所释放出的化学能引发常规机械分散方法所难以获得的高拉伸场。

The strong stretching field can be formed by using the pressure energy of physical inflating agent or chemical energy released by decomposing chemical inflating agent when heated , which can not be obtained by conventional mechanical dispersion method .